diff --git a/controllers/email_attachments_controller.php b/controllers/email_attachments_controller.php
index ab087024..0dcfddc4 100755
--- a/controllers/email_attachments_controller.php
+++ b/controllers/email_attachments_controller.php
@@ -11,10 +11,13 @@ class EmailAttachmentsController extends AppController {
         header('Content-type: ' . $file['EmailAttachment']['type']);
         header('Content-length: ' . $file['EmailAttachment']['size']);
         header('Content-Disposition: attachment; filename='.basename($file['EmailAttachment']['name']));
+        header('Content-Transfer-Encoding: binary');
+        header('Expires: 0');
+        header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
         ob_clean();
-       flush();
+        flush();
         readfile($file['EmailAttachment']['filename']);
-      //  echo $file['EmailAttachment']['filename']
+        //  echo $file['EmailAttachment']['filename']
         exit();
     }